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  1. #1
    Veteran Member bdog's Avatar
    Join Date
    Mar 2004
    John Deere 4440

    Default 7 way vs 6 way trailer plugs

    Years ago it seemed like the six way round metal trailer plugs were the most popular. Now it seems every truck or trailer I buy has the big plastic seven way. I don't need the functionality of the seven way but am thinking of changing just to be more standard and to quit having to change every thing I buy. Do the seven way connectors work well and hold up over time?
    1980 John Deere 4440
    2006 John Deere 550 J dozer
    2016 John Deere 333E compact track loader
    2018 John Deere 35G excavator

  2. #2
    Old Timer Soundguy's Avatar
    Join Date
    Mar 2002
    Central florida
    ym1700, NH7610S, Ford 8N, 2N, NAA, 660, 850 x2, 541, 950, 941D, 951, 2000, 3000, 4000, 4600, 5000, 740, IH 'C' 'H', CUB, John Deere 'B', allis 'G', case VAC

    Default Re: 7 way vs 6 way trailer plugs

    around here, the 6 way are usually found on ag trailers .. and also on discount trailers. i guess the 1$ they save when buildingthe trailers makes a difference int hat 6 vs 7 debate. anything with no brakes is getting the 4 flat.

    I used to keep a 6 way on the truck for a couple ag trailers, but now have everything 7 and use a 7 to 6 adapter if AI need to use my ag trailer. when the 6 ways on the trailer wear out eventually.. I'll upgrade to 7 just because...

  3. #3
    Super Star Member Diamondpilot's Avatar
    Join Date
    Jan 2007
    Daleville, IN
    Jinma 254/284 Ford 861 Powermaster at work

    Default Re: 7 way vs 6 way trailer plugs

    I work with trailers every day, maybe 75 of them a year. 99.9% are 7 pin. I have not delt with a 6 pin since about 2004 and the first thing I did with it was cut off the 6 pin and put on a 7. Reverse is what you gain with a 7 pin and its necessary for any trailer with disc brakes which are now the standard in the marine industry.


  4. #4
    Silver Member droptop's Avatar
    Join Date
    Jan 2012
    Western NY
    Massey Ferguson 1635 cab

    Default Re: 7 way vs 6 way trailer plugs

    The 7 pin seem to hold up quite well and make a good connection due to the large flat contact surfaces.

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